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The use of vergence information in the programming of prehension

Mon-Williams, M. and Dijkerman, H.C. (1999) The use of vergence information in the programming of prehension. Experimental Brain Research, 128 (4). pp. 578-582. ISSN 0014-4819

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Abstract

Human prehension requires accurate information on the properties of an object and on the position of the object relative to the body. In principle, prehension might be more accurate with binocular rather than monocular vision. Previous studies have shown that the kinematics of prehension are altered when one eye is covered. Unfortunately, the source of the useful binocular information cannot be established using this approach. In the current study, we used a perturbation technique to explore whether the human nervous system uses a signal from vergence in prehension. Perturbing vergence caused predictable changes in the kinematics of prehension. Our results thus provide clear evidence that the nervous system uses vergence information in the programming of prehensile movement.

Item Type: Article
Keywords: prehension; binocular; vergence; distance perception; human
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Medicine and Health (Leeds) > Institute of Psychological Sciences (Leeds) > Cognitive Psychology (Leeds)
Depositing User: Repository Officer
Date Deposited: 26 Jun 2009 08:58
Last Modified: 29 Sep 2010 14:24
Published Version: http://dx.doi.org/10.1007/s002210050885
Status: Published
Publisher: Springer Verlag
Identification Number: 10.1007/s002210050885
URI: http://eprints.whiterose.ac.uk/id/eprint/8692

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